I haven't added test cases here because these intrinsics don't map to a single instruction (they're legacy from Armv7) and would trip the "scan-assembler not mov" that we're using for the other tests.
Jonathan ________________________________ From: Richard Sandiford <richard.sandif...@arm.com> Sent: 23 July 2021 10:29 To: Kyrylo Tkachov <kyrylo.tkac...@arm.com> Cc: Jonathan Wright <jonathan.wri...@arm.com>; gcc-patches@gcc.gnu.org <gcc-patches@gcc.gnu.org> Subject: Re: [PATCH 3/8] aarch64: Use memcpy to copy vector tables in vtbl[34] intrinsics Kyrylo Tkachov <kyrylo.tkac...@arm.com> writes: >> -----Original Message----- >> From: Jonathan Wright <jonathan.wri...@arm.com> >> Sent: 23 July 2021 09:30 >> To: gcc-patches@gcc.gnu.org >> Cc: Kyrylo Tkachov <kyrylo.tkac...@arm.com>; Richard Sandiford >> <richard.sandif...@arm.com> >> Subject: [PATCH 3/8] aarch64: Use memcpy to copy vector tables in vtbl[34] >> intrinsics >> >> Hi, >> >> This patch uses __builtin_memcpy to copy vector structures instead of >> building a new opaque structure one vector at a time in each of the >> vtbl[34] Neon intrinsics in arm_neon.h. This simplifies the header file >> and also improves code generation - superfluous move instructions >> were emitted for every register extraction/set in this additional >> structure. >> >> Regression tested and bootstrapped on aarch64-none-linux-gnu - no >> issues. >> >> Ok for master? > > Ok. Please add testcases first though. :-) Thanks, Richard
